Improvement in dairy-apparatus



I ncaa' eine IA-Mns A, WHITNEY,

`Ol? NEW YORK, N. Y.

Letters Patent No. 93,936, dated Aug/nsf 17, 1869.

IMPROYEMENT IN 'DAIRY-APPARATUS.

. The Schedule'referx'ed to in lthese Letters Patent'and making part o! the same.

To all whom 'it may concern Be it known that I, JAMES A. WH1TNEY,fo1merly of Maly-land, in the county of Otsego, and State of New York, but now of the city, county, and State of New York, have invented certain new and useful vImprovements in Dairy-Appa-ratns5 and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a portion of this specieation, in whichv l Figure 1 is a side elevation and partial section of an apparatus made according to my invention.A

Figure 2 is a horizontal section of one portion ofi the same, on an enlarged scale.

Figure 3 is a vertical section of the same portion, also-on an enlarged scale.

Similar letters of reference iudicatecorresponding parts in all the figures.

-The object of this invention is to provide an appal ratns, whereby milk may be quickly deprived of its animal heat, and conveyed to a receptacle provided for holding the same, in order that the separation of the cream therefrom may be secured in a speedy and ously through the cooler.

. To enable others to understand the construction and operation of my invent-ion, I will proceed to describe it, with reference tothe drawings.

A is a horizontal frame-work, of wood or other material. ,A

This frame-work is provided, at one.V end, with uprights B, which sustaiira water-reservoir, C. This latter may consist of any suitable vessel, as, for instance, a cask or barrel.

Attached to the traine-work, in suitable proximity to the waterreservoir C, is a pump, D, of any appropn'ate construction.

The outlet-pipe E of this pump extends upward, and enters the reservoir C, at the upper part thereof, and the inlet-pipe F of such pump may be of exible hose. e

In the operation of filling the reservoir C, as pres? ently herein explained, this inlet-pipe F is extendedto a well, spring, or lother source of water-supply.

At the opposite end of the frame-work A is a tank,

G, `which may be of rectangular form. Itis preferredV that this tank, have a metallic lining, u, between which and the external shell b is a layer, c, composed of sawdust, powdered charcoal, orsimilar n0n-conductor of heat. p

This tank should, furthermorapbe provided with a -lid or cover, which may be of any suitableknd.

Placed at the inner endof the tank.G, upon a suit-v able bracket or support di', is ,the cooling-device H, which may be described as follows:

The device is formed of thin sheet-metal, and, ex'

ternally, mayY be nearly or quite cylindrical in shape.

The vertical sheet-metal plates, ot' which it is coinposed, are so arranged thatl a coiled passage, d, is provided between them. Intermediate with or between the folds of this passage d, are those of another coiled passage, e. -The passage d is closed at top and bottom, butat the t-op of its central or innermost end or portion, communicates by means of a neck, f, with a milk-holder or Vessel, I, which may be of any desired form. At the bottoni of the outer end or portion of the passage d, is an outletfcock Yor faucet, g, which projects past or over the inner edge of the tank'. The passage e is, of course, closed at the bottom, and, if preferred, may also be closed at the top. A pipe, J, furnished with a stop-cock, m, extends from the lower part of the water-reservoir nearlyto the bottom of the passage e, at the outer end or portion thereof. At the central orinnere'nd or portion of thislast-named passage e, is a vertical tube, n, which v'extends upward nearly to the top of the passage, and which, passingthroughA the bottom of the latter, may have secured or connected to its lower extremity, a waste or conduit-pipe,

r. TheV tube n is, furthermore, provided with a stopcock, s.

In order to use the apparatusthe pump D is oper'-V a-ted to 'dll the reservoir C with water from the well, spring, or other source of supply, care being, of course, taken that this water-be at a temperature' lower than that to which it is desired to cool the milk. This being done, and the milk to be cooled being placed in the milk-holder I, the cocks g m s are opened to permit; the milk to iiow from the milk-holder through the passage d of the cooling-device. H,'and to allow the water from the reservoir (l to'flow to the passage e of such device.

The milk flows through the passa-ge cl in one direci tank G, the milk may be suered to remain therein until the cream shall have risen, it being ascertained by experiment, that whenmilk is thus suddenly or quickly deprived of its animal. heat, the cream will rise to the surface thereof, even though the depth of the mass of milk may be many times lthat of the milk placed yiu paus in the ordinary manner, the cream, furthermore, rising in a much less period of time than when the milk is treated in the just-mentioned ordinary way. v

The. iiow of milk through the passage Zmaybe regulated, by tuming thecock g, to limit to the requisite degree the discharge of the milk therefrom, and, in

like manner, the. flow of the water 'through the passage e may be controlled through the ageney of the cocks m s, or, when the passage e is closed at the top, by the cock salone, so that by this means the proportion between the quantity of water owingthrough the passage d, and that of ,the milki 'passing through the passage e, requisite to insure the desiredV abstracte tion of heat from the milk, may be readily insured.

The combination, with a milk-cooler, of an elevated reservoir for cooling-liquid, and an elevated milk-hold# er, suitably arranged and organized for the milk and the cooling-liquid to flow simultaneously through the cooler, substantiallyras herein described.

' JAMES A. ',PVHITNEY.`

, Witnesses:

WM. B.'WH1TNEY, B. C. GREGORY. 

